Medical bills that I'm struggling to pay

Had a life threatening medical emergency in March of 2021 that left me in the hospital for a month with ongoing effects resulting in a major throat surgery in December of 2021. Recently the walking and nerve problems that were left from 2021 caused a nasty slip and fall on ice that resulted in the breaking of my knee. I had to have knee/tibia surgery March 14th of 2022 and was out of work for several weeks after being out of work for several months in 2021. I thought I had all my medical bills squared away, but recently I got a letter from the financial office of the hospital and had a meeting with my caseworker saying that parts of my bills from 2021 were denied because I made too much in 2020. I'm still paying off things from my knee surgery and now I'm back to owing much more since they piled on 2021 bills I thought had been written off. I'm in need of help with paying down these bills. Any little bit help and I greatly appreciate it!